Stone-cutting machine.



PATENTED JAN. 6, 1903.

0. L. PAYNE.

STONE CUTTING MACHINE.

APPLICATION FILED JUNE 28, 1902.

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N0 MODEL wijwvuma N0. 717,9119" PATENTED JAN.6,1903.

- c. L. PAYNE.

- STONE CUTTING MACHINE.

APPLICATION FILED mm: as, 1902.

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No. 717,911. r I BATENTBD. JAN; 6, 1903.

c; L. PAYNE. STONE CUTTING MACHINE.

APPLIOATION FILED JUNE 28, 1902. 110 MODEL s sums-sum a.

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Nita warns YATENT FFICE.

STONE-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 717,911, dated January 6, 1903.

Application filed June 28,1902. erial No. 113,665- (No model.)

To ctZZ whom, it may concern.-

Be it known that I, OLAUD L. PAYNE, a citizen of the United States, residing at Oolitic, in the county of Lawrence and Stateof Indiana, have invented certain new and useful Improvements in Stone-Cutting Machines, of which the following is a specification. I

This invention relates to stone-workin g machinery, and more particularly to apparatus for cutting the material into blocks of required size either in the bed or when quarried.

The invention appertains to the variety of machines designed for sawing stone and comprising an endless cutter or saw, whereby the work is continuous and two cuts are adapted to be made at the same time by the oppositely-traveling portions of the endless saw.

For a full description of the invention and the merits thereof and also to acquire a knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and drawings hereto attached.

While the essential and characteristic features of theinvention are susceptible of modification, still the preferred embodiment of the invention is illustrated in the accompanying drawings, in which- Figure 1 is a perspective view of a stonesawing machine embodying the invention. Fig. 2 is an elevation thereof. Fig. 3 is a top plan view. Fig. 1 shows two machines arranged for cutting a number of blocks into sections. Fig. 5 shows a pair of machines arranged for cutting a block from the bed. Fig. 6 is a detail section on the line X X of Fig. 2.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters...

The machine comprises a suitable framework which, as illustrated, embodies uprights 1, a sill 2, and a head-piece 3, the several timbers being connected inany substantial manner. In order to facilitate the shifting of the machine from one cut to another, it is mounted upon wheels 4, adapted to run upon a track 5, located at the bottom of the channel or cut or other place selected for operation of the machine. Vertical feed-screws 6 are arranged parallel with the uprights 1 and are journaled .to impart motion thereto. or driver 16 has a central opening of angular 1 at their ends to the head-piece 3 and sill 2 of the frame and are provided at their upper ends with gear-wheels 7. A horizontal shaft 8 is mounted in bearings applied to the headpiece 3 and is movable longitudinally, 'so as to effect rotation of the feed-screws 6 in one or the other direction, according as the saw is to be fed to the work or withdrawn after making a cut the requisite depth. A shipper-lever 9, pivoted between its ends to the head-piece 3, has engagement at its inner end with the horizontal shaft 8, so as to effect longitudinal movement thereof when required. This ship per-lever is provided with the usual handlatch for cooperation with a notched segment 10 for holding the lever and shaft 8 in the adjusted position. Pinions 11 and 12 are secured to the shaft 8, so as to rotate therewith, and are positioned so as to mesh with the gear-wheels 7 and effect rotation of the feed-screws 6 either to the right or to the left.

When the shaft 8 is moved to throw the pinions 12 in mesh with the gear-wheels 7, the pinions 11 are thrown outof mesh with said gearwheels 7, and upon shifting the shaft 8 in the opposite direction to throw the pinions 11 in mesh with the gear-wheels 7 the pinions 12 are thrown out of gear.

A counter-shaft 13 is arranged parallel with the shaft 8 and is mounted in bearings applied to the head-piece 3 and is adapted to be driven from a suitable source of power in any accustomed way and is provided with a band-pulley 14 for the reception of the drivebelt (not shown) commonly employed for transmitting motion from the engine to the part to be driven. A worm 15 is applied to the counter-shaft 13 and is in mesh with the cog-teeth of a gear-wheel or driver 16, so as This gear-wheel formation for the passageof a rod 17, which is vertically adjustable in said opening and adapted to be driven at any adjusted position from the said part 16. The rod 17 in cross-section conforms to the opening through the driver or gear-wheel 16 and is provided at its lowerend witha band-wheel 18, flanged at its upper side and having the face or edge grooved to prevent slipping of the endless saw 19, supported at one end by said bandwheel. A cross-head 20 supports the bandwheel 18 and lower end of the rod 17 and is movable vertically, its end portions being provided with sleeves or sockets 21, internally threaded to receive the feed-screws 6.

A shaft 22, arranged parallel with the shafts 8 and 13 and mounted in bearings applied to the head-piece 3, is provided at its outer end with a gear-wheel 23 and at its inner end with a pinion 24, in mesh with a gear-wheel 25, forming a part of or attached to the gearwheel or driver 16. A gear-wheel 26 is secured to the shaft 8 and is adapted to mesh with the gear-wheel 23 when the shaft 8 is moved to theright, whereby said shaft is rotated rapidly, so as to quickly withdraw the saw from a cut or lift the cross-head 20 and band-wheel 18 to the top of the machine when required for any purpose. When the gearwheels 23 and 26 are in mesh, the pinions 11 are in gear with the bevel gear-wheel 7.

In machines for sawing stone the feed must necessarily be slow, and to meet this condition the mechanism now to be described has been devised and consists of the worm-gear 27, secured to the shaft 8 so as to rotate therewith, a vertically-arranged worm 28, adapted to mesh with the worm-gear 27 and provided at its upper end with arms 29, and a pin 30, pendent from the drive-gear 16 and extended into the path of the arms 29, so as to strike one of said arms at each revolution of the driver and turn the worm 2S and the shaft 8, whereby movement is imparted to the feedscrew 6, so as to advance the saw to its work. As shown, four arms 29 are provided. Hence four revolutions of the driver 16 effect one complete revolution of the worm 28, which being of less diameter than the worm-gear 27 results in a partial rotation only of said worm and shaft 8. The bevel-pinions 12 being of considerably less diameter than the bevel gear-Wheels 7, it will be readily understood that the feed-screws 6 receive an exceedingly slow movement, thereby preventing a toorapid feed of the saw and insuring a harmonious working of all the parts.

When it is required to cut large slabs or blocks of stone from its bed, parallel channels or rifts are formed any distance apart, and a machine is located in each rift or channel, and the endless saw 19 is supported at its ends by the band-wheels of the respective machines. Preliminary to starting the machines the cross-heads 20 are elevated to cause the saws to clear the top surface of the stone to be cut, and the machines being set in motion the parts of the endless saw traveling in opposite directions make two outs simultaneously, the saw being gradually advanced or fed as the work progresses. When the cuts have reached the requisite depth and it becomes necessary to sever the block from the bed, the saw 19 is arranged about as shown in Fig. 5, one portion being elevated, so as to clear the top side of the block, the other portion cutting under the same, the machines being gradually advanced as the cut progresses.

Guide-pulleys 31 and 32 are located near 0pposite ends of the frame, the pulleys 31 being arranged near the lower end and the pulleys 32 near the upper end, this being clearly shown in Fig. 5. I

Fig. 4 shows an arrangement of a pair of machines for cutting a number of blocks of stone, both portions of the saw being utilized in the operation.

Having thus described the invention, what is claimed as new is- 1. In a machine for sawing stone, and in combination withaband-wheelformingasupport for the saw, and a driver adapted to actuate the said band-wheel, feed-screws for advancing and withdrawing the band-wheel, a shaft movable longitudinally, gearing between said shaft and the feed-screws for ro tating the latter in opposite directions either to advance or withdraw the band-wheel, gearing between the'driver and said shaft for rotating the latter in one direction to eflect a quick return of the band-wheel to a normal position, and other gearing between said shaft and driver to effect a slow feed of the bandwheel, the latter gearing comprising a gear element having arms, and a pin extended from said driver into the path of said arms, substantially as set forth.

2. In a machine for sawing stone, a support for the saw, feed-screws for advancing and withdrawing said support, a longitudinallymovable shaft, gearing between said shaft and feed-screws for rotating the latter in opposite directions, a driver for actuating the saw-support, gearing between said driver and the longitudinallymovable shaft to rotate the latter in one direction to effect a quick return of the saw-support, and other gearing to effect a slow feed of the saw-support, the

same comprising a gear element having arms,

and a pin extended from the saiddriver across the path of said arms to strike the latter, substantially as described.

3. In a stone-sawing machine, the combination of a vertically-movable saw-support, a driver for actuation of the saw-support, feed-screws for raising and lowering the said saw-support, a longitudinally-movable shaft, gearing between said shaft and feed-screws for rotating the latter in opposite directions, gearing between the said driver and the longitudinallymovable shaft, a worm wheel secured to said shaft and movable therewith, a worm adapted to mesh with said wormwheel and provided with arms, and a pin extended from the driver and adapted to strike one of said arms at each revolution of the driver, substantially as and for the purpose set forth.

4:. In a stone-sawing machine comprising the following instrumentalities, to wit: a frame, a cross-head, a band-wheel movable with the cross-head, feed-screws cooperating with the cross-head to effect vertical movement thereof, a driver, a rod extended from the band-wheel and passed loosely through the driver and rotatable therewith, gearplied to the longitudinally-movable shaft and wheels at the upper ends of the feed-screws, adapted to mesh with the saidworm 28,-suba longitudinally-movable shaft, pairs of pinstantially as set forth.

ions applied to the shaft and movable there- In testimony whereof I affix my signature 5 with to effect opposite rotation of the feedin presence of two Witnesses.

screws, shaft 22 geared to the driver, gearing CLAUD L PAYNE [L S 1 23 and 26 between the shaft 22 and the longitudinally movable shaft, worm 28 having Witnesses:

arms 29, a pin extended from the driver across R. T. BUCHANAN, IO the path of said arms, and a worm-wheel apl W. F. BROOKS. 

